Struct FbdevOutput 

pub struct FbdevOutput { /* private fields */ }

A framebuffer device as the output of the platform.

Implementations

impl FbdevOutput

pub fn new(file_name: Option<&str>) -> Result<Arc<Self>>

Opens the framebuffer device file_name, or the one the environment variable FRAMEBUFFER names, or /dev/fb0.

pub fn with_format( file_name: Option<&str>, format: Option<PixelFormat>, ) -> Result<Arc<Self>>

Opens a framebuffer device and asks it for format.

pub fn with_options(options: FbDevOutputOptions) -> Result<Arc<Self>>

Opens the framebuffer device of the options.

pub fn with_device( device: Box<dyn IFbDevice>, options: FbDevOutputOptions, ) -> Result<Arc<Self>>

The output over a device that is already open. An addition: with a FileFbDevice the output runs without a framebuffer device.

pub fn id(&self) -> &str

The identification string of the device.

pub fn var_screen_info(&self) -> fb_var_screeninfo

The variable information of the device the output draws with. An addition, for diagnostics.

pub fn fix_screen_info(&self) -> fb_fix_screeninfo

The fixed information of the device the output draws with. An addition, for diagnostics.

pub fn dispose(&self)

Releases the mapped memory (once the frame that uses it has ended) and closes the device.

Trait Implementations

impl IFramebufferPlatformSurface for FbdevOutput

fn create_framebuffer_render_target(&self) -> Rc<dyn IFramebufferRenderTarget>

Creates the framebuffer render target of the surface.

impl IOutputBackend for FbdevOutput

fn pixel_size(&self) -> PixelSize

fn scaling(&self) -> f64

fn set_scaling(&self, value: f64)

fn as_render_surface(self: Arc<Self>) -> Arc<dyn IPlatformRenderSurface>

The output as the render surface of the top-level.

fn as_gl_output_backend(&self) -> Option<&dyn IGlOutputBackend>

The output as one that renders with OpenGL (the reference tests the type).

fn as_surface_orientation(&self) -> Option<&dyn ISurfaceOrientation>

The output as one that has an orientation (the reference tests the type).

impl IPlatformRenderSurface for FbdevOutput

fn as_framebuffer_surface(&self) -> Option<&dyn IFramebufferPlatformSurface>

The surface as a framebuffer surface, if it is one.

fn as_any(&self) -> &dyn Any

Lets the backend recover the concrete surface type.

fn is_ready(&self) -> bool

Whether the surface is ready to be rendered to.

fn try_get_surface_kind(&self, _kind: TypeId) -> Option<Rc<dyn Any>>

The surface viewed as a surface kind defined outside this crate: for TypeId::of::<dyn IFoo>() the result holds an Rc<dyn IFoo>.

fn text_rendering_parameters(&self) -> Option<PlatformTextRenderingParameters>

The text rendering settings of the platform for this surface, when the platform knows them: the render backend asks for them every frame (they follow the settings of the system and the display the surface is on). A backend asks every surface of a top-level and takes the first answer; None from all of them gives the defaults of the backend (docs/porting/text-rendering.md).